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Interesting Problem! 2 VIOs, One is problematic, assigning disks and resources from the other only

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Operating Systems AIX Interesting Problem! 2 VIOs, One is problematic, assigning disks and resources from the other only
# 8  
Old 04-20-2011
Hi,

Well the issue has been resolved Smilie SAN allocated new Ldevs. and now things are back to normal Smilie

Regards.
# 9  
Old 04-20-2011
This is exactly what I was talking about. Usually if an external disk is causing problems on the VIO then either the WWN was given incorrectly for the HBA or the LUN was created incorrectly. This is why I suggested deleting the hdisk from the VIO server and ask the storage team to delete and recreate the LUN.

Glad it is resolved as these types of fault can be very frustrating as you only have control of a small part of the infrastructure.
# 10  
Old 04-22-2011
Did you set the "reserve_policy" attribute on the disk?
Code:
vio1:/home/padmin:# lsattr -El hdisk5 | grep reser
reserve_policy  no_reserve                       Reserve Policy                   True
vio1:/home/padmin:#

If you don't and one VIO server puts a VTD on the disk (assigns it to an LPAR), then a reserve is put on that disk by the VIO server and the other VIO server can't touch it. To change it to no_reserve, you have to remove the VTD, set the attribute, remove the disk (rmdev -l hdisk5), then bring the disk back (mkdev -l hdisk5) and the attribute should be properly set. Then recreate the VTD and have the other VIO server try again.

------------------
Update: Now I see there is a second page to this post. Oops.
# 11  
Old 08-16-2011
Well I am posting after a long time.. Sorry for the delay I guess I forgot.

Well the issue was resolved by the SAN team. They reallocated the LUNs.. The disks are up on all Lpars Smilie

Regards,
# 12  
Old 08-18-2011
Hi ,Can I have vios version ? There are some bugs in 2.0 version
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